Product Introduction: For toilet, entryway, etc. Just place it in a place where you are concerned about mold and odors. Comes with a cute decoration set. When the effectiveness becomes diluted, the color of the sheet becomes lighter and will notify you when it is to replace. Uses materials that are used for cosmetics. (Set Contents) 1 sheet (2.4 x 3.9 x 0.06 inches (60 x 100 x 1.4 mm), set of mats, 1 sponge sticker x 2 sets; How to use: Suitable for rooms with approximately 6 tatami (9.9 square meters). (1) Unfold the set paper and paste the included double-sided tape on the installation position. (2) Secure the mat with double sided tape so that it does not move between the front and back of the mat. Write out the date after 2-3 months in the back frame. (3) Take the sheet out of the included bag and bend it to the "letter of ko" along the crease. (4) The engraved letters on the sheet are inserted from the side so that the letters of the sheet can be seen through the heart hole on the backing and complete the set. The active ingredient is heavier than air, so please place it in the upper part of your drawer, shelf, etc. [Estimated Replacement] Approx. 2 - 3 months (when using a room of about 13.9 sq ft (6 tatami mats); When the pink color of the sheet; Caution: This product is not edible, so please be careful not to put it into your mouth. ·In the event that you may feel uncomfortable during use, please stop using this product. Due to the nature of the product, there may be unevenness in color, but the quality does not change. When opened, the sheet may feel a little strong aroma, but it will relax in a few days. Please do not install this product near heating appliances or in places where it may cause high temperatures. The duration of the effect may vary slightly depending on the usage conditions. After opening, the active ingredients begin to vaporize, and cannot be stored, so please use them out. Store unused sheets away from direct sunlight and out of reach of children. If you experience any abnormalities on your body during use, stop using and consult a physician.